(a) Suppose f:R³ → R² is a function for which and Could f be linear? Why or why not? (b) . that Suppose g: R? → R³ is a linear function, and you know • (8) • (C) - } (8)- 3 and

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
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Chapter3: Functions And Graphs
Section3.3: Lines
Problem 10E
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Please see picture for the questions as it is a bit hard to type out. It is about linear functions.

### Problem Set

**(a)** Suppose \( f:\mathbb{R}^3 \rightarrow \mathbb{R}^2 \) is a function for which 
\[ f\left(\begin{bmatrix}2 \\ -5 \\ 3\end{bmatrix}\right) = \begin{bmatrix}-1 \\ 2\end{bmatrix}, \quad f\left(\begin{bmatrix}4 \\ 1 \\ -3\end{bmatrix}\right) = \begin{bmatrix}5 \\ 2\end{bmatrix}, \quad \text{and} \quad f\left(\begin{bmatrix}6 \\ -4 \\ 0\end{bmatrix}\right) = \begin{bmatrix}3 \\ 4\end{bmatrix}. \]
Could \( f \) be linear? Why or why not?

**(b)** Suppose \( g: \mathbb{R}^2 \rightarrow \mathbb{R}^3 \) is a linear function, and you know that 
\[ g\left(\begin{bmatrix}1 \\ 0\end{bmatrix}\right) = \begin{bmatrix}1 \\ 3 \\ -2\end{bmatrix} \quad \text{and} \quad g\left(\begin{bmatrix}0 \\ 1\end{bmatrix}\right) = \begin{bmatrix}-2 \\ 0 \\ 4\end{bmatrix}. \]
What is \( g\left(\begin{bmatrix}-2 \\ 3\end{bmatrix}\right)? \)
Transcribed Image Text:### Problem Set **(a)** Suppose \( f:\mathbb{R}^3 \rightarrow \mathbb{R}^2 \) is a function for which \[ f\left(\begin{bmatrix}2 \\ -5 \\ 3\end{bmatrix}\right) = \begin{bmatrix}-1 \\ 2\end{bmatrix}, \quad f\left(\begin{bmatrix}4 \\ 1 \\ -3\end{bmatrix}\right) = \begin{bmatrix}5 \\ 2\end{bmatrix}, \quad \text{and} \quad f\left(\begin{bmatrix}6 \\ -4 \\ 0\end{bmatrix}\right) = \begin{bmatrix}3 \\ 4\end{bmatrix}. \] Could \( f \) be linear? Why or why not? **(b)** Suppose \( g: \mathbb{R}^2 \rightarrow \mathbb{R}^3 \) is a linear function, and you know that \[ g\left(\begin{bmatrix}1 \\ 0\end{bmatrix}\right) = \begin{bmatrix}1 \\ 3 \\ -2\end{bmatrix} \quad \text{and} \quad g\left(\begin{bmatrix}0 \\ 1\end{bmatrix}\right) = \begin{bmatrix}-2 \\ 0 \\ 4\end{bmatrix}. \] What is \( g\left(\begin{bmatrix}-2 \\ 3\end{bmatrix}\right)? \)
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